Telegraph page-printing machine



Feb. 17, 1931 c so 1,793,365

TELEGRAPH PAGE PRINTING MACHINE Filed Aug. 19, 1926 4 Sheets-Sheet l 6752 H4 ISO/Y Feb. 17, 1931. c. B. HARR ISON TELEGRAPH PAGE PRINTING MACHINE Filed Aug. 19, 1926 4 Sheets-Sheet 2 17,. 1931. 3. HARRISON 1,793,365

TELEGRAPH PAGE FRINTING MACHINE Filed Aug. 19. 1926 4 Sheets-Sheet 3 uxwk atmmq Feb. 17, 1931. c, a HARR|SON 1,793,365

TELEGRAPH PAGE PRINTING MACHINE Filed Aug. 19, 1926 4 Sheets-Sheet 4 anaemic-z feed signal which allows nearly two-fifths of a second for the operation since the line feed and carriage return actionsproceed simultaneously. However, even if two-fifths of printer the release is not accomplished-untilthe clutch is tripped by the sixth or localim-i pulse and the camshaft is connected to the rotating motor spindle to be'revolved}; V In the operation of a page printer, about 10 per cent. of the line time is utilized in the I transmission of Signals to bring about the various motions of the paper carriage,-namely, the line feed, carriage return, shift ng and unshifting and thefeeding of message blanks.

i are not required, but not all ofthe tllnBCOIi sumed in their operatlon is saved s1nce1t 1s The latter action usually is manually per-f formed.- In a printer of the tape type, some of the time lost in operating the line feed, carriage return and the feeding of message blanks is eliminated since these three actions necessary in the operation of-a tape printer 7 to transmit signals to divide the preamble of pthemassage from the address, the address.

from the text of the message, the text from the signature, and to indicate the end of message, etc. Since the ;'difl'erence in the amount of timelost in the operation-of the a two types of printers is notgreat, the page printing feature as used in the presentinventionis more desirable and has advantages over the tape printer. For instance, in a page printer, the message is standard and neat, and ready for delivery to the public upon receptlon, and does not require the cuttmgand pasting of the tape on the message blank as inthe case of the tapeprinter.

fore, is to provide an apparatus of the char,-

acter referred to, the operation and parts of I may be carried out in extremely short time,

.thereof.

which are extremely simple and wherein the various mechanical operations of tl e printer intervals thus permitting the apparatus to be operated at a relatively high speed. I I

A further object is to provide a page printer having novel selecting means for accomplishing the various I mechanical functions A further object is to provide a page printer the printing portions of which correspond closely to standard practice in typewriter construction thereby simplifying the structure and operation of the device, and to provarious other mechanical elements for ac- An important object of the invention theretrolled by the Baudot distributor previously referred tO. V

w A further obj set is provide an apparatus "ofthe character just mentioned wherein a plurality of electro-magnetic relays are employed in'conjunction with the distributor for selecting the mechanical elements to be actuated, and to providenovel electro-magnetic operating means for the mechanical ele-- ments of the electro magnetic actuating means operating in conjunction with the selecting relaysinsuch a manner that the selection of mechanical elements to be operated are maintained in operative position until actuation has been accompllshed, whereupon the selecting means and elements controlled thereby are automatically returned to normal position. V v

-A further objectis to provide a plurality of selector rods having cams associated therewith for selecting the proper mechanical elements to be actuated,the cams being co-related in such a 'maner thatit is impossible for more'than one mechanical function tobe performed at one actuation.

A further object is to provide a page printer of the character outlined wherein the actuation of one of the mechanical elements of the apparatus is dependent upon such eleanent having been pre selectedtso'that no ac tuation takes place unlesssomeprinting character or mechanical control means has been previously selected for actuation by the disgributor and the elementscontrolledthere- A further object is to provide a page printer wherein only a single electrical impulse is necessary to complete a given mechanical function and to return the operating elements to normal position whereby these operations may be accomplished in the shortest possible time.

v A further object is to provide a plurality of actuating electro-magnets associated with and electrically connected to the relays and distributor, an electro-magnet for actuating the mechanical elements selected by thedistributorpand a source of current for actuating the electro-magnets,movement of the ac"- tuating means to operative position being adapted to break the electrical circuits controlling; the electro-magnets to. permit the various mechanical devices to automatically return to normal position.

A further object isto provide a page print-- or having a carriage and platen carried theretion at the end of each line, 1

pressionupon the-page.

for. returning the carriage to its initial posi- A further object is to provide novel means for causing the carriage to travel one space upon the completion of-each Gther objects andadvantages of-itheinvention'will become apparent during the course of the following description;

. In the drawings I have shownone embodi- I ment of the invention. In this showing,

Figure 1 rearfdiagrammatic elevation r of the page printershowing the electrical connect-ions thereto,

portion of the selecting and printinga pparatus,

i Figure skis a transverse sectional view showing aportion ofthe operating elements of the p inter, p p I Figure '5 is a detail seclional view through 1 the spring operated carriage returning de Fi ure 6 isa detail ers iective ci oneof t the printer bars and associated elements, and,

Figure 7 isatragmentaryperspectiveot a k portio'n'of thespace teed release mechanism..

- Referring to the drawings, the numeral 10;

;;designa ;es the @printing apparatus as a at one end with a line i'eedratchet 19. 1-K feed pawl is adapted to actuate the ratchet This pawl is pivotally connected at, one end as at 21 to one end'of a bell cranky lever 22, the lever being pivotally connected as at 23 to one of the end frame members 1'6.Q

15. The carriage is providedwithi endfframe members 16 slidable uponbars 1'? to permitthe carriage to travel longitudinally of the printing apparatus, as will be apparent. An

ordinary platen 18 is rotatably supporled by.

the end frame members 16 and isprovided A link 2% is pivotally connected at oneend to the opposite end member 16, and an operating rod 25 is secured at oiopositeends to the free ends of the bell cranlr lever 22 and link 24.

A spring 2 6 isconnected between the pawl 20 and bell crank lever, 22 to normallyhold the pawl inengagement with the ratchet wheels, while a second spring 27: is connected be- 16 to re ainthe bell crank lever in normal position. Means tobe described are provided for actuating the rod 25 to rotate the platen 1s,

character im-. 7 g

carriageaiter each character impression and Figure 3 is a rear elevation of the .printer,

a is the usual practice to"pro vide spring drum means for IIlOVlIlgihG' carriage of a typewriter, the carriage being returned manually to its initial position against the tenion of the spring. Inythe present invention I have reversed this'operation and have provided :mechanical means for advancing the between wordspspring drum means being pro vided for. return ngthe carrlage t-o t's initial position af er the completion-oi each line.

Asshown in Figures 1, 2" and 5, the numeral 28. designates a; drum upon. which is wound a cable 29, one end of the cable being secured to the'drum asiwill be apparent. Thedrum v I -28 is arranged adgacent one end-of the-print F1gure2 is a fragmentary perspect ve-"of a ing apparatus land,the opposite end ot-the hjacent the opposite end offthe apparatus. The druinis supported-by stub shaftsgl journalled'in suitable bearings, 32 supported" uponltheirame the apparatus at any suitable point. Sincel igurexl 1s "a View taken from: the rearof the apparatus, it will be apparent that movement of the carriage duri ngthe printing and spacing operations is from left to right, and this movement is adapted to rotai Qthe drum -28 by neansof the cable T is action is adapted to wind carriage tolits initial position, in almanner to be d i d Meansare provided for mechanically advancing the carriagestep by step. upon; com

2, a .raclr bar36 is arranged rearwardly of thev carriage and is provided with teeth 37.

At its upper extremity, the rack bar is .pro-

vided with a rearwardly extending-horizontal flange 38 for a purpose to be described. The rack'ibar is secured at'its ends to links 39 which are pivotally connectedfas at 40 with the end plates 16 of the carriage. The

rackbar is adapted to be maintained in the normal positionshown in Figure 2 of the drawings by a spring 4:0. Rearwardly of the carriage a rotatable shaft 41 is supported in a bearing 42, preferably of the ball hearing type, and is supported by a stationary portion of the frame of the apparatus. The shaft 41- is provided onits-inner end with a I ,pinion 43 normally meshing with the teeth tween the bell crank lever and the endframe v with a wheel 4e having ratchet teeth 45 there- 37 The outer endiof'the shaft a1 is provided and the opposite end of the pawl is provided a'z'spring33 secured at one end-rte the shaft pletion ofthe printing of'each character and between words- Asshown in Figuresil and with a tooth 48 which engages the teeth of the ratchet wheel to prevent movement there of in one direction, as will be obvious. A

" spring 49 is secured at one end to the pawl 46 and at its opposite end the spring is secured as at 50 to a'suitableportion of the upper frame 14. It will be obvious that the 7 spring 14 normally maintains the pawl in I apparent that the spring maintain the tooth 52 in engagement with the teeth of the ratchet wheel. The lever 54v engagement with the ratchet wheel as previously described. An operating pawl 51 is arranged adjacent the ratchet wheel and is provided with a tooth 52 adapted to engage the ratchet teeth to effect movement of theratchet wheel. The pawl 51 is pivotally connected intermediate its ends as at 58 with thefree end .of a lever 54 having pivotal connection at'its oppositeend as at 55 with a portion of the frame member 14. Thelever 54- isprovided with a depending member 56 to which is connected one end of a'spring' 57, the opposite end of the spring being connected to the lower end; of the pawl 51. {It will be :57 isadapted to is normally adapted to be drawn upwardly by a coil spring 58, the upper end of which is connected to a vertical: extension 59 preferably formed integral with the top "frame 14. Anjoperating rod 60 is connected to the step by step rotation imparted to the ratchet wheel will effect a'similar movement of the carriage to provide spaces between letters and words. places the spring 33 under increasing tension until theend of a line is reached whereupon it is desirable to releasetherackbar 36 from the pinion 43. It will be'apparent that the 'rack'bar is free to'swing upwardly due to' its pivotal connection with therend frames 16 of the carriage and upwardmovement is accompllshed by vertlcally moving a slide 62 contacting with the shoulder 38 of the rack bar and controlled in a manner to be de-' scribed. A latch 63 is secured at one end to 1 one of the frame members 16 and is provided adjacent its lower end with a horizontal portion 64 adapted to snap into position beneath the end of the rack bar when the latter is raised. The latchis also provided with an integral depending portion 65 which is adapted to engage a stop 66 to release the latch and permit the rack bar to drop to normal position when the carriage is returned to the beginning ofa line. l

Adjacent the rear portion of andwithin the frame 10, I provide a plurality of pref- This step by step movement erably vertically arranged operating rods or 1 hook bars 66, which in actual practice are thirty-one in number.

Twenty-six of these operating rods constitute type bar operating rods for printingthe letters of the alphabet,

"while the remaining five are for performing other mechanical functions such as letter spacing, line feeding, carriage returning, case shifting, and shlft releasing. Each of these operating rods is provided adjacent its lower end with an olfset portion 67 providing a hook 68 for a purpose to be described. A coil spring 69 is connected at oneend to the lower end of each of the operating rods, the opposite ends of the springs being secured to" the lower portion of the frame 10. Aside from their connections with the springs 69,

the-operating rods are freely movable forwardly, and rearwardly at their lower ends for aqpurpose to be described.

. Each of the operating rods which constitute printer bars is similar in construction and only one need be described in detail. Referring to Figure 4 of the drawings, the numeral 70 designates a fixed horizontal pivot or axis rod secured at opposite ends to, the frame oftheprinting apparatus. A plurality of bell crank levers 71 arepivotally mounted upon the rod 70, one hell crank lever being provided for each of the" operating rods. 4

Each bell crank lever includes a lower horizontal lever arm 7 2 pivotally connected as at is further provided with a vertical arm 7 4 pivotally connected as at 7 5 with one end of a link 76. A coil spring 77 is connected at one end to the vertical arm 74 of each bell crank lever, and the opposite end of the spring is connected to a suitable portion of the frame. The opposite end of-each link 7 6 is pivotally connected as at 78 with one of the type bars 7 9 of the apparatus, similar in construction to the usual type bar of a typewriter and provided with type 80. The free end of each type bar is normally supported upon a rail 81 as will be-apparent. Adjacent the pivotal connection 7 8, each type bar is pivotally connected as at 82 with a supporting rail 83 forming a part of the frameof the type basket. It will be obvious that downward movement of the operating rod associated with each type bar will swing its bell crank lever 71 about the rod 7 2, thus moving the link 7 6 and raising the type bar to cause the type thereof to strike against a sheet of paper on the platen, in the usual manner.

As previously stated,"l prefer to employ five, of the operating rods for efi'ecting the other mechanical functions of the apparatus.

-=.As shown in Figure 2, I have diagrammatihave shown thisblo'ck as being provided with a horizontalportion85 anda vertical portion 86, the upper end of whichis provided with a shoulder '87; A'bell crank lever 88fis pro-1 vided with a horizontal arm 89 contacting with the lower. face or" thehorizontal portion 85 of the block 84. Thefbell crank lever is,

pivotally connected to any 'suitable portion of theffrain'e '1 the apparatus-as at 90, and is e provided'withan upwardly extending lever arm 91.' A link'92-is pivotally'connected atone end as at .93 with the upp'e'r'end of the. lever arm 91, and the opposite end of thelink 92 is pivotallyconnected as at9t with a bell V crank lever 95"simliar in construction to the bell crank lever 71 previouslydescribed and pivotally supported upon the rod 70. The

horizontal arm of the bell'crank lever 9 5 is pivotally connected as at 9'6 totheupper end a of an operating-r0d'97;*this rod being one of the group of operatingrods previously de- V scribed;

scribed. "It will 'beebvions that "downward movement of the rod '9'? is adapted to "rock the bell crank levers 95 and 88130 efl'ect vertical movement'of the block 84. I As shown in Fig- 1 ure 2,"a latch 98 is pivotally connected as at 99 to anysuitable-portion of thetypewrit'er frame and is provided near its lower end with a tooth 100adapted to engage beneath the shoulder 87. A spring 101-is adapted to urge the tooth 'forw'a'rdly to engagement-be neath the shoulder 87 when the'block 84is ele vated in a manner tobe described. The'latclr 98 is provided beneath the tooth 100 with a depending end and a slot and pin'connection 102 connects this depending end with one of a rod'103; The opposite end off-the rod;- 103 is pivotally connected'as at 1'- with a bell crank lever 105 similartothe bell crank levers 71 and '95 previously described, and? also pivotally supported by the rod 7 0. The horizontalarm ofthe bell crank lever-105 is pivotal-ly'connected as at'106 with oneopen ating rod 107 'offthe' group previously de When-the bloek84 isfelevated by: I operation of the rod 97, the tooth I00. en-' gages-beneath the shoulder ST-and is retained in such position until'thefrod'107 is drawn downwardly, this latter action rocking the r bell crank lever 105 and drawing the rod 103 outwardly't o release thetooth from the shoulder 87,-thus permitting the block 841th return to normalposition'. ltzwil'libeobvious that the latch 98 "is 'free to swing torwardl'y when the block84 is elevated without effecting movement of'the rod 103,' due toj'the 'slot;

and pin connection 1 02.f H v t I w v U Another operating" r'od 1108 of the. group described is adapted to effectthe line feed ofthe apparatus by ope'rating the pawl 20. A rod 108 is arranged above'the operating rod 108, and the adjacent ends of these'r'od-s are pivotally connectedt'o each other and tof to the next'lin'e to be printed.

time loegth 'e appos te and a this link being pivotally connected with the rod 70. e The rod 108 has aportion' 109 offset rearwardly to-"perrnit tree inovement of otherparts of I the apparatus to be described. Above the off set portion 109,the rod 108C referred to is provided with a horizontalportion 110 and a verticalportion 111. The vertical portion 111 extendsfupwardly to a point substan-r." tially in: horizontal alinement with the frefd 25, wherei'ipon "therod extends forwardly as l v 112 and is provided. with an eye 113' "slidably receiving nierodaea Ififwillbeapparent that the carriage is fi"ee-.to,;inove longlfii tudina'lly' with the 'rod' 25 sliding within. the

eye 113' and that downward-'movement ot the rod 108 is adapted to rock'thebell crank lever 7 the return of the carriage to the beginning of aline after the, preceding line has been completed; A rod 114; is arranged above the rod' 11% as shown in Figure 2, and the aajacent ends of these rods are pivotally connecte 7 forming one of v ed to each other and to one'e'nd of a link 115, V

thecpposite'end of this linkbeing pivotally connected to the rod 70. 'The upper end of the vertical portion 117' is pivotally connected with alever "118, as at 119,-the lever 118 being pivotally supported intermediate its ends as atj120 and securedat its opposite end:

to the'slide 62. The slide is 'SllCltLblB beneath the [shoulder 38f'ofthe rack bar'3 6'to permit free longitudinal, movement of the carriage.-

It will be obvious that downward movement 7 .01 the rod 114 is adapted "to lower the rear end'of the lever'118 and elevate the slide 62,

which action elevates the rack ba'r 36 and releases the teeth 37 thereof vfrom the teeth of the pinion 43. T'Upon completion of this -movement, thetension of the spring within the drum 28 rotates the drum thus winding 1 the cable 29-and returning the carriage to the beginning of a-line'.

'i-aai a-wheanro move the carriage longi tndinallvbetween letters and between words.

at shown in Figures 2 and 4; h u r I 121 design-ates a longitudinal bar pivotally connected asfat 1:22 'to any suitable portion ofthe frame. V-Thisbar extends along the rear "portion' of the apparatus adjacent the vertical arms f7t of each of the bell'c'rank levers-71. It will beobvious that actuation Mean's are provlded for controlling the of thesebell' cranltlevers is adaptedtoswing T As shown in Figures" Land 2, 'the bar'121 tervthe bar 121 rearwardly aboutits 'pivots 122. I i I with the rods .108 and 114 have no 'vertical portions, operation of the latter will not swing the bar 121. The bar 121 is provided with acontact 123 insulated therefrom as at 124, and when'the bar 122 swings rearwardly from normal position the contact 123 is 7 ad pted to establish. electrical connection with a contact 125 connected to a lead wire 126, connection between these contacts being broken when the bar 121 swings back to normal position. It will be apparent that the contacts 123' and 125 may beplacedin any suitable position with respect to the bar 121, the contact .125 being resiliently mounted manner to be described, the, bar 121 returns upon the frameof'the apparatus. The contact 123 isconnected by a wire 127 with the solenoid 61, as shown in Figure 1, the opposite end of the solenoid coil being grounded as at 128' through a wire 1252. A suitable source of current to bedescribed is adapted for connection between the wire 126 and ground 128for supplying energy to the solenoid 61. i

From the foregoing it willibe apparent that actuationof any of the printer bars is adapt-- ed to swing the bar 121 rearwardly to energize the solenoid 61. The armature then draws the lever 54 downwardly and the tooth.

52 escapes over the teeth of the ratchet wheel. As soon as the printer bars are released in a to normal position thus breaking electrical connection between contacts 123 and 125 and deenerg zing the solenoid 61, this action causmg the spring 58 to. draw the lever 54 upwardly whereby the tooth 52 engages the teeth of the ratchet wheel 44 to rotate it. Rotation of the ratchet wheel obviously is adapted to space the carriage longitudinally for the next impression or word space. I also provide means for actuating the bar 121 to provide proper spacing between words. Another of the operating rods of the group 66 is adapted to accomplish the word spacing movement of r the carriage. As shown in Figure 2, the rod l30ris pivotally connected at its upper end as at 131 with a bell crank lever '132 also pivotally supported upon the rod 70. The bell crank lever 132 is provided forwardly of the bar 121 with anarm or upper lever portion 133 which is adapted to swing the bar 121 rearwardly when the operating rod 130 is actuated. Thus it will be apparent that actuation of the latter operatingrodis adapted to provide proper -spacingjbetween words without effecting any printing action. I

As shownin Figures 1, 2, 4 and 5,2. longi tudlnally extending str ker ball or actuating rod 134is arranged within theframe 10.near the lower rear portion thereof. The rod 134 issupportedadjacent each end in one end of a supporting link 135, eachlof the links being pivotally supported a't136 upon any suitable portion of the frame of .the apparatus. as

prings 137 are adapted normallyholdthe rod 134 its upper position. Solenoids A 138 of the single spool type are arranged adjacent each end of the rod 134 and are provided with armatures 139-pivotally connected to links 140, the upper ends of the links being provided wit-h eyes 141-surrounding the rod 134. Suitable means. are provided for energizing the solenoids 138 at the proper time for effecting the downward movement of one of the operating rods 66 As shown in Figure 4, the rod 134 is arranged rearwardly of the operating rods 66 and is adapted to contact with one of the hooked portions 68 to move one of the operating rods downwardly when the solenoids 138 are energized. Means to be described are provided whereby all of the operating rods 66 except one will bemoved forwardly out of the path of travel of the rod 134, as shown in dotted lines in Figure 4 of the drawings. The single operating rod 66 which is allowed to remain in the solid line position shown in Figure 4 by the selecting mechanism is arranged with the hook 68 thereof in contact with the rod 134,;a'nd it will be obviousthat energization of the solenoids 138 will draw the rod 134 downwardly to effect downward movement of the operating rod 66 just referred to. When the circuit through the solenoids 138 is broken the springs 137 are adapted to return the rod 134 to normal position. Y

Means are providedfor selecting the operating rod tobe drawn downwardly by the actuating rod 134. As shown, the numerals 141, 142, 143, 144, and'145,designate a plu- A rality ofseleotor rods which are arranged parallel to each other and adjacent the operating rods 66. In practice I prefer to em- 7 ploy 'five'of the selector rods as illustrated for a reason which will become apparent.

in dotted lines in Figure 4.. Since the cam 147. projects downwardly beneath the rod 141, this cam will have no effect upon the operatingrods 66 toward the right side of the machine, as viewed in Figure 1 and, hence the hooked portions ofthese rods are free-to be arranged beneath the rod 134, so far as the cam 147-is concerned. Aswill appear however, the remaining selector rods are adapted to influence those of the'operating rods 66 which are not arranged tobe engaged by the cam 147, The selector rod. 141 is rotatable .f f the operating rods 66 at'the-right and left sldes of the machine W111 be reversed, those through a one-quarter circle to move'the cam sition: and to move the can1 147 ltothe same relative'position normally occupied by the cam 146, in which case the re'lative positions previously'held out of engagement by the cam:146 being released,so far as the cam 146 1s concerned,:and those-normally free of 1n 'fluence by the cam. 14? being moved forwardlyto move the hook portions thereof outot thep'ath of travel-of the rod 134. The next lower selectorrod 142 isprovided with a pair of cams. 148 and 149, each of which extends substantially throughone-half the length of each of the cams 146 and 147. The cams 148 and 149 normally project forwardly and. horlzontal'ly, and the selector rod 142'-1s"provided with a second pair of can1s 1'5O and 151, which normallyidep end vertically from I the rod 142. 7 Each of the cams of the selector rod 142 is associated with a pair of cams 152 and, 153 carried by-the' tselector rod 1143, the cams 152 normally-proj'ecting forwardly and horizontally whileihe cams 153 normally depend vertically from'the' selector rod'1'4'3.

Similarly each cam of the rod 143 is associated with a pair-of cams 154 and 155 of the next lower selector rod 144, the cams 154 normally corresponding inposition to the cams 146, 149 and 152 while the cams 155 normallycorrespond in position tothe cams '14? 151 and 153. From'anieziamination of Figurell'it will be apparent that each'of the cams 152. and 158 is associated withand adapted to control four of the operating'rodsbo withf the exception of the ca1n153v at. the-extreme right end. of theselector rod' 143L- =This is due to the factof course that thereare'thirty-on'e of the selector rods; The cams 15 4fand 155 are 'each'adapted to 'controlitwoof the oper:

ating rods 66 with the exception of. the cam at the extreme right end of the's'elector rod 144, this cam only influencing the last operatingrod 66 while thenextadjacent cam influencesor' controls two of theoperating" rods 66.- Thelowest selector rod 145 isfprovided W'ith'a plurality of cams 156'and 157 each of which controls one of the operating rods "66.

Each of the selector r'ods141 to 145 is rotat able through a one-quarter circle to bring either set of cams carried by eachselecton rod into engagement with certain' of theiop; a crating rods '66 The selector. rods {are nor mally arranged in the position-shown in Fig ure 1 and I are retained: in. such p'ositionby suitable sorin. 's l58. -vl or the sake er- Zsinr' 1 V plicity, Ifprefer-to employ torsion. s rings:

158, one end of each spring being secured to v U its associated Sele'ctQrrod whiletheopposite' j end of each spring is secur'eclto thefladjacent',

'T side'frame 11. Eachselector rod is adapted v to be rotated thro'ughaonekquarter circle by eleetricalmean's to .bedescribecl, suchiinovei V p mentbe'ing accomplishedagainstthe tension 146 to an upwardly extending vertical of the springs 158 while the, latter return the it willbe apparent that each of 'the'o'peratingrods 66 is contacted by'at' least one northatnone of the operating rods-is in-a 'pos'i tion-to have itshooked' portion 68 engaged by the rod 134.. The operating rod 130,

which is the word spacing rod, is the one' in dicated at theextre'me'right end of Figure 1.

It will-be'noted that-the cams at the extreme right ends of the selector'rods 141'to'144i' 1; elusive are normally vertically arranged and 'mal-ly horizontal cam of theselector rods so it hence will .not' influence the rod The Y cam att-he extreme right endof the selector rod 145, however, normally proj ects horizo ntally to hold th'e'word spacing rod 1-30 in'inoperative position with-respect to' the rod 184. It will be. apparent therefore, that rotation of thelowest selector rod through a one qu'arter circle will release therod 130, permittingits spring'69 to draw the lowerend thereof "rearwardly to place"; it in an operati ve' position whereby its hooked portion 68 will'beengaged by: the rod 134-ifthe latter is moved downwardly. Similarlyone or more of the selector rods may-be rotatedthrough a one-quarter clrcle to release any one of thekrods 661-0 permit the-lower, end

thereof. to swing rearwardly, only one of the operating rods being released-gait time and" theone released depending'uponthe particular selector rod or combination'of selector rodsrotated."

Electrically controlled"meansare provided for rotatingthe selector rods in the manner.

7 described; As shown, a; plurality of singlesp'ool solenoids 159, 160, 161,162 and163 su'ppor'ted in any suitable manner adjacent the'frame of'th'e printing apparatus. Each ofthese[solenoids 1's provlde'd w'ith an armature' 164' pivotally connected as at 165with a 'link 166. The outer ends; of the links are pivotally connected to thelower ends of cranks 167 secured to or formed integral with the selector, rods. Energizationfof'the solenoids in a mannert'o' be' described is adapted to rotate the selector-rods.

' A battery orother source of current 168 is 1 provided for operating the electrical elem e nts of the apparatus" previously.referred Hto'. One side of-the battery is grounded at 16 9, while the opposite sidefofthebattery is connected by a wire 170 witha swi'tch arm 17 1- adapted to" normally engagea' contact 17 2'; A spring 173' normally closes the cir-' cuit between theswitch arm l7llandcontact 172 The 'switch arm 171' is; arranged as shown in Figaro 2, to be actuated by down ward movement of the 'rod 134 to open the" circuit between "the switch arm 171mm cone tact '172. The contact 172is connected'to a common wire 174 which in turnis connected to each of the solenoids 159 to 163 inclusive through branch wires 175. A lead wire 176 is connected to the opposite end of the coil of each of thesolenoids referred to.

174, the wire 177 being provided with branches 178 connected to each of the solenoids 138. The opposite ends of the coils of thesolenoids 138 are connected to a lead wire 179. 'A branch wire 180 is connected at one'end to the wire 170 leading from the battery- 168, and the opposite end of the wire 180 is connected to the wire 126 to supply current to the contact 125. r

7 Referring to Figure 1, the numerals 181 to 185 inclusive designate a plurality of elec-. tro-magnetic relays corresponding in num-V her and arrangement to the solenoids 159 to 163 inclusive. Each of the relays is provided with an armature 186 connected to-one' of-the wires 176. The coil of eachrelay is connected to a common return-wire 187 which is grounded as at 18.8, alamp or other resiste ance 189 being interposed inthe wire 187 for V a purpose to be describech The opposite ends of the-coils of therelays 181 are con- I nected to wires 190, andthe opposite ends of these wires are connected to arcuately ar-' ranged contacts 191 carried by a distributor 192 of the Baudot type.- The wires 190 are also provided with contacts; 193 adapted to establish electrical connection with the are matures186 when the relays are-energized.

As previously" stated, the distributor 192;

is of the Baudot five pointtype, and means are provided for sending electrical impulses through eitherof the contacts 191 according to the particular selection to be made. The

distributor'is provided with an arcuate -coni tact 194,'and a rotatable brush member 195 is carried by the distributor. The brush 195 is mechanically rotated and issynchronized with the rotatable brush of adistributor'at the sending station. As the brush 195 passes over the contact 194, it will be a'pparent'thatv it is adapted to convey elec'trical impulses to either of the contacts 191 as it passes theree over if the contact 194 is energized at the "a proper time. The contact 194 isconnected by a wire 196 to the tongue of a differentially wound polarized relay indicated as a whole by the numeral 197. This relay includesan armature198 electrically connected with the .wire 196 and adapted to be attracted by either of tworelay magnets 199 and 200. The latter relay magnets are connected by a common -wire 201,- and the magnets 199 and 20.0 are connected with the sending station through a Wire 202. The a rmature 198'is adapted to establish electrical connection witheither of two contacts 203 or204 accord-,'

ing to which of the magnets of the polarized relay attracts the armature. The contact 204 is connected by a wire 205 withone terminal branch wire 177 is also connected to the wire by a-wire'216with of a battery or other'source of current 206,

the other terminal of this source of current being grounded as at 207 through a wire 208.

The wire 179 is connected with. anarmature 209 adapted to be operated bya'relay 210. The coil of this relay is connected at- 4 one end to a wire 211 and theopposite end of this wire is connected to a stationary local contact .212 carriedby the fdis'tributor192.

A c'oacting local contact 213 is arranged be-' tween the contact 212 and the axis of rotation of the brush 195. The brush is extended to the opposite side of its pivot to'form a local brush 213' and the latter in itsrotation is adapted to electrically connect the contacts 212 and 213. A wire214' con'nects the con- 'tact'213 with a ground 215. The opposite end of the coil of the relay 210 is connected the common relay return thelbrush arm of the sending station, and the current impulses are received at the same in stant that the'arm 195 passes over one of the contacts 191.- It will be obvious that for some selections an impulse will be received as'the arm 195 passes overlonly one of the contacts 191, while for other selections any combination of current impulses may be'received by the distributor 192. It willbe obvious that the distributor is shown diagrammatically,

and it willbe apparent that any number of groups of the contacts 191 may be employed whereby the arm 195-will pass over a number of the groups duringeach revolution instead of asingle groupfas illustrated.

As an impulse is received through the line wire 202, current'will be transmittedto one of the relays 181 to 185 inclusive whereby current will flow from the source 206, through contact 204 and armature 198, to'wire 196and' contact 194. Current then will be transmit-' ted throughthearm195 tooneof-the contacts 191 depending upon the particular instant at which the impulse is given. As previously stated, however, impulses may be given as the brush 195 passes one or more of the-contacts 191,.whereby current will be supplied to one or more of the relays 181 to 185 inclusive, through wires 190. From the relay or relays energized, current flows to the common return wire 187, through the lamp 189 or-other' resistance, to ground 188, and thence back to the source 206 through ground 207 and wire 208. Actuation of one of'the relays 181 to 185 inclusive inthe mannerde scribed, attracts its corresponding armature 186, which armature is connected with one'of the solenoids 159 to 163inclusive. Assuming tricalconnection between this armature and the corresponding contact 193. Under such conditions, current will flow from the source 168 to switch arm 171 and contact 172,

' thencethrough wire 17 1 and the lowermost 'wire 175130 the solenoid 163 and from this solenoid current flows through one of the wires 176to the operate-cl armature 186.

From the latter armature, current flows through the solenoid 185 to the wire 187, through the lamp 189 to ground 188, from whence it returns to the source 168 through, the ground 169. Thus it will'be'obvious'that the solenoid'163 and relay 185 will be energized, energization of the s0len0id'185 being maintained after thebrush- 195 passes be-I 'yon'd the contact corresponding with this re- 7 lay. It will be obvious'that current may be supplied to any-one or more'of-the solenoids 159 to 163 inclusive in the same manner, and in either case the selected relays 181 to 185 will be maintained in an energized condition after the brush 195 passes beyond the contacts 191. As previously stated, allof the operating rods 66 are held out of operative position, that is; out of the path of travel of the bar 134 when the, selector rods-are in normal position as shown in Figure 1: From an examination of this figure, it'will'be apparent thatthe operating -rod 130 at'the extreme right end of the apparatus will be held out of operative position only by one of the" 1 scams 156 of the lowermost selector rod, the

operating rod 130 being cleared so far as the ,remaining selector rods'are concerned. En-

ergization of the solenoid 163 in the manner described attractsthe "armature of the solenoid, thus drawing the correspending crank 167 inwardlyto rotate the lower selector rodthrougha' quarter circle. Under such conditi0ns,the earn 156 which normally holds the operating rod 130 out of normal position is moved to inoperative positionand the spr1ng'69 corresponding to the. operating member referred to, draws this member rearwardlyto arrange its hooked'portion .68 di- 159 to 163 inclusive, or anycombinationot suchsolenoidspreviously selected will be rectly beneath the rod 13% to r be actuated thereby when it is moved downwardly in a manner to be described. 1

As previously stated, either of the solenoids maintained energized after the bru'sh' has passed off the contacts 191, thereby holding the selector rods inany desired position for aigiven selection-of an operating rod. 66,.

Means are provi'ded'forautomatically 'depressing the rod 134 to operate the rod thus to return to normal position. after the actuatingrod has completed itsmovement. After the brush arm 195 passes beyond the contacts 191,.rotat1ng 1n a counter-clockwlse direction,

the local brush 21'3""is adapted to bridge across the contacts 212a-nd 213.. the relays181to 185 inclusive vhas been previously energized, some of -the. current then .will flow throughthe relay'210, and wire 211, thence-across'the contacts 212 and 213 through arm 195, through wire 214 and a a A 1 ..11 \L through 215, and back to the source 168 the ground 169. Passageof current If either or through the relay 2-10 is made possible by" interposing the'lampor other resistance 189 in the wire-187. When the relay 210 isenergized it attracts itsarinature209, thus closing a circuit from the, wire 174e, previously energized in themanner described, through 'wires 177 and 178 to'the solenoids 138, thence V through wire 179 to the armature 209. From the armature. 209 some'of the current flows.

through the solenoid210, wire 187 and lamp 3 circuit last referred to obviously energizes the solenoids 138 thus attractingtl'ieir armatures 139 and drawing the rod 134 down- V wardly againstthe tension of the springs 13.7.

lVith the selection previously referred to,

'wherein only the lowermost selector rod has beenrotated through a'one quarte'r circle, it will be apparent that downward movement of the rod 134 will depress the operating rod 130. This action swings the bell' 'crank lever .132 and the upperarm 133 ofthis levercoir tactswith the bar'121 to swing the latter rearwardly and establish electr cal connection between "the contacts 123 and 125. As the actuating rod 134 approaches the lower limit of its 'movement, the switch 171 w1ll be openechsinc'e the switch is arranged in the.

path of travel of either the rod 134 or one'ot its supporting-links 135.v Thisa'ction breaks the circuit between theswi'tch' arm-171- and l qonftactj 17 2, thus deenergizing all. of the selector rodsolenoids, andall of the' relays. The solenoid 61 is-in av normally open circuit and therefore'the spring 58 normally holds the ar-1n'5 1inits upper position. Energy for V the circuit of solenoid 61 is supplied through wires 1-70, 180 and 126, contacts 123 and 125,

and wire 127 From the solenoid current returns-to the source168z-through wire 129 a and grounds128and-169. --It wi'l-l{be.obvious that when the circuit. for the 'solenoid -61'"-is' completed, it" isbroken by movement of the 121 back to normalposition andspring 58 will'draw the pawl 51 upwardly, the tooth V 52 of the-kpawl engaging the teethof the :ratchet wheel to 'rotat -e'f it and move .the-

selected, and to permit the selected elements rgjcarriage one space; It will be appareilt thet eft 107, 108 or 114 is 'operatechsincenone of these rods is provided with means associated with the'bar 121 to cause actuation ofthe latter. The spacing rod 130, and all'of the operating rods associated with characters to be printed, however, are provided with bell crank levers having portions adapted to actuate the bar 121 w iereby the carriage is". moved longitudinally one space afterthe completion of the operation of any of the elements last referr d to; The instant the circuits through the selector solenoids, and the solenoids 138 arebrolzemthe springs 13'? tend to return the rod 13 to its upper or normal position, and this return movementten-ds to take place ahead of the upward movement of the operating rod which been operated, due to the greater inertia of-theparts brought into operation by the operating rod. This lagging movement of the operating rod while extremely slight, is sufiicient at least to loosen the contact between the 'rod 13 l and the hooked portion of the operating rod. Deenergization of the selector solenoids permits. the selector rods to return to normal-position and at least one of the selector cams will contact'with the previously selected operating rod to return it to normal position, this action is quic rly completed due to the small amount of force necessary to move the previously selected op crating rod, the friction between the hooked portion of the rod and the red 13 1- having been reduced in the manner previously described.

An examinationof Figure 1 will make it:

clear thatselection of any one or more se lector rods'is adapted to'release one of the operating rods for engagement with the actuating rod 134-. For instance, the shift release rod 107 is normally held in inoperative position by all of the selector rods, and accordingly it is necessary to actuate all-of theselector solenoids in order to release tllfilllfl] release .for operation.v Similarly the case shift rod 97 is held in inoperative position by cams of thefour uppermostselector rods, but not by the lowermost selector'rod, and accordingly it isnecessary to energize solenoids 159 to 162 inclusive in order to effect movement of the case shifting mechanism. Similarly any of the operating rods may be selected by ating rod 108; ."As. shown in Figure 1, this rod is" normally held-in inoperative position b the normall 1 horizontalcams of selector rods 141, 142,143 and 14:5,- and accordingly it is necessary to energize sol noids .159, 160,

161 and 163 to effect movement of the line. feed. mechanism. :When this action i s'acthe normallvhorizontal cams of selector rods 7 41, 142 and 1 13, and accordingly may. be broughtinto operative pos1t1on by energize- "tion of solenoids 159, 160 and 161; After selection of this rod-downward movement of the actuating rod 134 causes thedownward movement of rods 114i and 114:,and this movement again rocks the rod 118 about its pivot 120, thus lifting the slide 62. Elevation of the slide 62 lifts therack bar 36 and causes the horizontal portion of the latch 64 to'svving inwardly and. thus hold the rack bar .in its uppermost position with the teeth 87 thereof out of engagement with the teeth of the pinion 43. The spring 33 then rotates'the drum 28, thus winding the cable 29 about the drum and returning the carriage to the beginning of the next line.- I

As the carriageapproaches the limit ofits movement at the start of a line,-the stop 66 contacts with the depending portion of the I latch 63, causing the latterto swingoutward- 1y longitudinally of the carriage to release the horizontal portion 64 of the latch from the rack bar'thus permitting the latter to return to normal position with the teeth of the rack bar in engagementwith the pinion 13.

The operation of'the case shift andshift release mechanisms will be'obvious from an examination of Figure 1. Actuation of the rod 97 swings the bell crank lever 88 about its pivot thus elevating the block 8' 1,'the latter being held in its upper positionby theqlatch 98. Actuation ofttherod 107 releases the latch 98 permitting theishift release action tor rods are preferably of increasing Width" to compensatefor the increased distance from the centers of-the lower selector rods to the operating rods when the latter are-1n lnoperativef position shown in dotted lines in Figure 1., r I

From the foregoing, it will be apparent that I provide 7 a relatively simple apparatus wherein selection of a characterto'be printed or a mechanical. function to be performed may be accomplished in a very short interval ofv itime, actuation being accomplished promptlyzupon completion ofthe selection;

The actuating mechanism obviously is adapted to automatically break the circuits through the controlling solenoids'and relays, thus perning motors, and materially reduces the 'interval of time necessary for the Completion of any function, due tothe rapid action of the solenoids and relays. With present devices of'this character a considerable interval of time is necessary for the performance of the various-functions of the apparatus due to the 7 use oftriction clutches, and the necessity for overcoming the inertia of relatively heavy parts, such as gears and the like. Thepres cnt apparatus is adapted to employ very light operatin parts, the inertias of which are substantially negligiblewhereby practically in- *stantaneous operation is accomplished.

The electrically operated elements of the a paratus are deenergized when no messages are being received since energization of the relays is dependent upon impulses received fromthe sending station While energization of the selector solenoids and thesolen'oid 61 is dependent upon energization of the selector relays. It also will be apparent that energization of the relay'210 is dependent upon the'pre-selection of at least one of the relays 181 to 185 inclusive, since current is-initially' supplied'to the relay 210 through the common-return wire 187. Therefore if the brush 195 passes overall of the contacts 191 without transmitting any impulses thereto, it will be obvious that the relay 210 "will remain de energized and no actuation of the rod 13% will take place. Thus it will be obvious that the apparatus is not only extremely simple in construction and operation but may be economically operated so for as the consumption ,of current is concerned.

The line wire 202 maybe employed for sending and receiv ng messages simultane- 'ously'through the operation of the diiierentiall-y wound polar relay 197.

and that "various changesin-the shape, size and arrangement of parts may be resorted to operative in either of two positions and having a normal bias-to one of such positions,

' electro-magneticmeans adapted tov directly actuate said selecting means to move them to the other of sa d POSltlOIlS, means: for -actua ating the operating member selected by said means, and a switch controlled by movement lot said actuating means forldisconnecting selectedoperating rod. r 5. "A page" printing telegraph machine said'source of current from s'aid'electro-mag- 'netic means upon the operation of theselected operating member.

2. Ajpage printing telegraph machine comi arising typewriting mechanism including a of operating rods, a plurality of to the other of said positions, a source of current for, said electro-magnets, means for actuating the operating rod'selectedby said selecting means, and means controlled by said actuating means for disconnecting vsaid source "of current from said electro-magnet upon the operation of the selected operating r0d..- 7 w '3. A page printing telegraph machine comprising typewriting mechanism including a plurality'oioperatingrods, a plurahty of oscillatory selecting devices-each movable to either oi" two positions and having, a normal i bias to one of said positions, an electro-magnet directly connected to each of said select ing devices to move itto the other of its posi magnets, a switch adapted to 'controlia sup operating rodselected by said selecting'de-' ticns, a source of current for saidg'electrovices, said switch being operable by movement of said actuating device to disconnect saidele'ctro-I'nagnets from said source of cur rent upon the operation of the selectedope'rating rod. Y

4. A page printing jte'legraph imachine -7 comprising typewriting-mechanism includi I ing' a plurality of operating rods,= a plurality of mechanical selectingdevices' forsaid rods, each of said select ng devices including a gagesaid operating rods, each of said select devices being movable to either of two positions and having a normal biasto one of such; positions, an electro-magnet directly connected to eachofsaid selectingdev'ices t0 "moveit from normal position to the other of of the snlojoined claims.

its positions, a source of current for said elecopen said switch upon" the movement ofthc comprisingtypewriting jmechanism including a plurality of parallel operating'r'ods, a

plurality ofparallel selector rods, said selector" -rods.being arranged at right'angles g to saidoperating, rods and inaplane paral-; selectmg'means, asource of current adapted to be connected, to said r'electrogmagnetic' lel to the plane thereof, each ofsaid: selector rods being providedwith a plurality of co- 7 related cams adapted-to contact with said 013:" crating rods to movethem to operative and plurality of corelated camsgadapted to'en- It is to be understood that the "form of the a invent-ion herewith shownand described is to be taken as a preferred example oftlie same troanagnets, and actuating means for, the. operating'rod, selected bysa 'd selecting de- 1 vices, said actuating means being adapted to ,inoperative positions,e ach of said selector I having an armature connected to one of said selector rods, a source of current, a switch adapted to control the supply of current to said electro-magnets, a plurality of electrical selecting means adapted to control the passage of current to said electro-magnets independently of said switch, and an actuating rod for said operating rods, said actuating rod being adapted to open said switch upon the movement of one of said operating mem bers. c l

6. A deviceconstructed in accordance'with claim 5 provided with electro-magnetic meansfor operating said actuating rod,and means for connecting said electro-magnetic means to said source of current independently of the energization of said electro-magnets} 7 e V 7. A device constructed in accordance with claim 5 provided'rwith means for supporting said actuating rod to permit-iits movement from inoperative to operative'positions, said v actuatingrod having a normal bias to inoperatlve posltlon, and electro-magnetic means for operating said actuating'rod. v

8. A page printing telegraph machine comprising typewriting mechanism including a plurality of. operating rods, Vmechanical selecting devices for said rods operative in either of a plurality of positions and having a. normal bias to. one of such positions, an

electro-magnet adapted to actuate each of said selecting devices, a relay associatedwith each-of said electro-magnets, a source of current, a distributor adapted to supply electrical impluses to eitherrot said relays,

second'source of current for said electro-magnets, energization of either of said relays being adaptedto connect it inclrcuit with ts associated electro-magnet,'an actuating rod adaptedtoief ect movement of theoperating 'rod selected by said selecting devices, and

having a normalibias to inoperative Tnosi- .'.tion a solenoid controllin movement or said actuating rod, said solenold being connected to sa d secondnamedsource of current, and

means controlled by the movement of said actuating rod for disconnecting said electromagnets, said relays andsaid solenoids from said source oi 'cur'rent upon completion of the movement of the selected operating rod.

9; A page printing telegraphmachine comprising typewriting-mechanism including a plurality of operating rods arranged parallel to each other, a plurality ofselectorrods arranged parallel to, each other at right angles to said operating rods, said operating rods and said selector rods being arranged in adjacent parallel planes, a plurality of co-related cams carried by each of said selector rods and adapted.- to engage" said operating rods to 'magnets and provided with an armature connected incircuit with one end of the coil of each of said electro-magnets, a source of current having one side connected to the opposite ends of said coils,a distributor having a pluralityof contacts, a wire connecting'each contact LO one end of the coil of each relay and adapted to be electrically connected to the armatures of said relays upon energization thereof, a second source of current adaptedto transmit electrical impulses to each of said contacts, the opposite ends of the coils;

of said relays being connected to the opposite side of said first named-source of current, and

meanscontrolled by said distributor for en- Y ergizing said solenoid.

10. A device constructed in accordance with; claim 9 provided with means controlled by the movement of-said' actuating rod for dis-o connecting said first named source of current from the coils .of said electro-magnets.

11. Alpage printing telegraph machine-10 comprlsmg typewrltlng mechanism 1nclud1ng a plurality of operating members, mechanical selecting means for said operating members operative in a 'plurallty of positions and having a normalbias to one of such po-; 105

sitions, said operating members being constantly in engagement with said selecting means,and electro-magneticmeans adapted to actuate saidselecting means;

12. A page printing telegraph machine jlo' comprisingtyp'ewriting mechanism including. a plurality of operating members, mechanical selecting means for said operating members operat vem a plurality of positions and havmg *a normal'bias to one of such positions, 115

electro-magnetic means adapted to vactuate said selecting means, and actuating means for the operating member selected by said selecting means, said operating members being constantly in engagement with said se- 12o lect ing means and having a normal bias to operatlve position to beengaged by sa1dactuating means.

13.'A page printing telegraph machine comprising typewriting mechanism'includ- 125 sing a plurality of operating members arranged substantiallyin a common plane, a plurality of oscillatory selecting; members provided with a plurality of co-related cams and arranged adjacent said operating mem- 13c bers, said operating members constantly engaglng said selecting members, and means for actuating the selected operatingmember.

l l. A page printing telegraph machine comprising typewriting mechanism ncluding a plurality of operating members, a plurality of oscil atory selecting members provided with a plurality of corelated cams, said se lecting members being operative in either of two positions and having a normal bias to one of such positions, means for maintaining said operaiing members in constant engagement with said selecting members, and means for actuating the selected operating member.

15. A page printing telegraph machine comprising typewriting mechanism including a plurality of operating members arranged substantially in a common plane, a plurality of oscillatory selecting members arranged adjacent said operating members substantially at right angles thereto and in a plane substan tially parallel to the plane thereof, said selecting members being operative in either of two positions and having a normal bias to one of such positions, means for maintaining said operating members in constant engagement with said selecting members, each of said operating members being provided with a shoulder, and actuating means adapted to engage the shoulder of and to move the selected operating member.

16. A page printing telegraph machine comprising typewriting mechanism including a plurality or operating members, a plurality of selector rods arranged parallel to each other in a plane substantially. parallel to said operating members, said selectorroos being provided with aplurality of corelated cams and being operative in either of two posit-ions, means constantly urging said selector rods to one of said positions constituting normal position, means for moving said se-r lector rods to the other of said positions, said operating members being arranged in constant engagement with saidselector rods,

0 selected operating member. "17. A page printing telegraph machine comprising typewriting mechanism including a plurality of operating members, aplurality of selector rods arranged parallel to each other in a plane substantially parallel and means for engagin and actuating the to said operating members, said selector rods being provided with a plurality of corelated cams and being operative in either of two positions, meansconstantly urging said selector rods to one of said positions constituting normal position, means for moving said selector rods to the other of said positions, said operating members being, arranged in constant engagement with said selector rods, means for engaging and actuatingthe selected operating member, and means operative upon movement of said actuating means for releasing the selector rods Which have been ing a normal bias to one ofsuch positions, means for moving said selector rods to the. other of said positions, means associated with said last named means for momentarily reposition when moved thereto, said operating members b8111 in constant engagement "with taining said selector rods in said last named said cams, means for actuating the selected 1 operating member, and means operative upon movement of said actuating means for releasing the selector rod retaining means.

19. V A page printing 7 telegraph machine comprising typewriting mechanism including a plurality of operatingmembers, a plurality oi selector rods supported at their ends for axial oscillationand provided with a plurality of corelated cams, said selector rod-s being operativein eitherof two positions and having a'normal bias to one of such positions, meansfor moving said selector rods to the other of said positions, means for mains taining said operating members in constant engagement with said selector rods, and means for actuating the selected operating member. 1 1

20. A page printing telegraph machine comprising typewriting mechanism including a plurality of operating members, a plurality of selector rods supported at their ends for axial oscillation and provided with a plurality of correlated cams, said selector rods being operative in either of two positions, spring means for constantly urging said selector rods to one of'such positions, means for moving said selector rods to'the other of said positions, means for maintaining. said operating members in constant engagement with said selector rods, and means for actuating the selected operating member.

In testimony whereof I afliX my signature.

CHARLES BYRON HARRISON. 

